IPC分类号：
A21B1/33 | F24B1/24
当前申请(专利权)人地址：
Z.I. LOC. Feurredda, Simaxis (OR), IT
摘要：
A process for manufacturing a cooking oven, particularly for food, comprising a step of making a part of the outer covering of the oven as one prefabricated fiberglass piece, is described.
技术问题语段：
The technical problem addressed in this patent text is to improve the mass production and reproducibility of a wood-fired oven while reducing its weight, manufacturing time, and cost, while also ensuring its strength and resistance to thermal expansion, as well as its impermeability to water and atmospheric agents, and aesthetic appeal. Additionally, the invention aims to provide the oven with the ability to be easily moved after installation. The current solutions for the outer covering part of the oven, such as masonry with plaster and paint, covering with bricks or small tiles, or using a mosaic of small tiles, have limitations such as excessive weight, long manufacturing time and cost, manual operations, insufficient impermeability, aesthetic decay, and low resistance to thermal expansion. Various technical solutions, such as using flexible material or a mono-layer material, have also limitations such as insufficient strength, reliability, and flammability.
技术功效语段：
The finished product is made from fiberglass, which is a material that is strong and can resist changes in temperature. This results in an oven that is lighter, thinner, and more resistant to external factors like atmospheric agents. The fiberglass is also fully impermeable, meaning it allows the oven to protect itself from these external factors.
权利要求：
1. A process for manufacturing a cooking oven, particularly for food, said cooking oven comprising an internal compartment delimited by a case, the upper part of the case comprising an internal layer made of refractory material facing the internal compartment, an intermediate layer made of thermal insulating material, an outer covering layer, the process comprising a step of making said outer covering layer as one piece of prefabricated rigid composite multilayer based on fiberglass.
2. A process according to claim 1, wherein said rigid composite multilayer based on fiberglass comprises: - one or more overlapping layers of matrix material with a reinforcement layer buried in the matrix; - one surface layer of isophthalic resin internal to the oven; - at least one layer of isophthalic resin external to the oven, said at least one layer of isophthalic resin external to the oven being mixed with microspheres and/or colored pigments.
3. A process according to claim 1 or 2, wherein said matrix material comprises resin of the vinyl ester type mixed with catalyst.
4. A process according to claim 1 or 2, wherein said reinforcement layer comprises fiberglass.
5. A process according to any one of the preceding claims, , wherein said step of making said outer covering of the oven comprises the following steps in succession: - prearranging a mold having a desired shape for the covering; - spreading a layer of mold-release material on the mold; - spreading an internal layer of isophthalic resin on the mold-release layer; - spreading at least one layer of matrix material on said layer of mold-release material, with a reinforcement layer buried in said layer of matrix material; - applying a first external layer of isophthalic resin; - applying a second external layer of isophthalic resin, mixed with microspheres and/or colored pigments.
6. A process according to claim 5, wherein said step of spreading at least one layer of matrix material comprises spreading several matrix layers and reinforcement layers one over the other, waiting for an underlying layer to cure at least partially prior to applying a next layer.
7. A process according to claim 5 or 6, wherein said step of spreading at least one layer of matrix material comprises applying a reinforcement in some areas, obtained by spreading a larger quantity of material.
8. A cooking oven, particularly for food, comprising an outer covering layer manufactured by using a process according to any one of the preceding claims.
9. An outer covering adapted for a cooking oven, manufactured by means of a process as in any one of claims from 1 to 7.